Window jack



May 14, 1935. M, NEWHOUSE 2,001,626

WINDOW JACK Filed D760. 6, 1934 Z 25622 #5 z/ 4.20 F

2 Cr I A 92 .5. WM) JMM,

Sum/W 3 Patented May 14, 1935 UNITED STATES, PATENJTI;

OFFICE V WINDOW JACK Menno Neinhouse, Muskegon, Application December a, 1934, SerialilVo. 756,339

4 Claims. (01. 304-33) The invention has relation to window jacks, and particularly to window jacks for glaziers use in installing glass in steel sash, being also adapted for use by other mechanics such as painters, carpenters, bricklayers, etc., an object of the invention being to provide an improved device of this description to render the mechanic more safe in his hazardous work. Other objects and advantages'will appear hereinafter.

The invention consists in the novel construction and combinations of parts as set forth in the appended claims.

In the accompanying drawing illustrating th invention, 7 I I Figure 1 is a side'view of the window jack. Figure 2 is a section on the line 22, Figure 1.

Figure 3 is a perspective view of the window jack as applied to a steel window sash.

Figure 4 is a similar view of the jack as applied to a steel window sash adjacent a swinging ventilator section thereof. a

Figure 5 is a similar view of the jack as applied to the outer side of the'window sill., j

Figure 6 is a detail perspective view showing the connection betweenthe upright member and the transverse member.

In the drawing, the numeral l designates the horizontal member of the jack, 2 the upright member thereof, and 3 the strut member there- The upright member has a longitudinal series of upper slots 4 anda lower slot 5, said horizontal member engaging any one of said upper slots and having an outer notch 6, and a longitudinal series of inner notches I any one of which engages said upright member, said strut member having an upper fork 8 embracing said horizontal member and an upper tooth 9 engaging the outer end wall of said outer notch of the horizontal member, said strut member engaging the lower slot of the upright member and having a lower notch It also engaging the upright member, the latter having a lower fork I I.

In the use of the invention as applied to steel sash intermediately of the height thereof as shown in Figure 3, the lower fork ll of the upright member engages a lower frame bar of a window light and upper part of said member engages the inner face of the upper frame bar of said light, said member having a horizontal U -form device l2 adjustable transversely to engage one edge of said member and a verticalframe bar of the window light to thereby securely hold,

the jack in position, the outer end of the horizontal member having a'hook I3, engaging the outer edge of a plank M on which the mechanic is supported." The U-form device l2 after being adjusted transversely to position is secured in place by means of a'set screw 15. I In theuse of the invention as applied to stee sash. adjacent a swinging ventilator section 16 thereof, as shown'in Figure'4, the upright member of the jack has the upper part thereof engaging the outer face of a horizontalupper frame bar of a window light, and a transverse member I! engages the lower fork of said up right member and is long enough to engage the. outer faces of opposite spaced vertical frame bars of the window light, being held securely in said fork by bolts l8 engagingperforations of the upper wall of said fork; the horizontal member [having an inner verticallhook l9, engaging-over the upper frame bar of the window'light, the swinging ventilator section of the sash being shown as swung inwardly to permit of such engagement.

The jack assembled as in Figure 4- is also adapted to be hung on a ladder, -as will be obvious. 1 The horizontal member is made in two longitudinal-sections, lapping each other, and adjustable longitudinally with respect to each other to vary the length of said member as may be required in the particular case, the sections having each a longitudinal series of perforations 20, with any registering pair of which a bolt 2| of the upright member has engagement; a bolt 22 of the upper fork of the strut member being adapted for engagement with either of two perforations 23 of the horizontal member, thereby providing for adjustment of the strut member with respect to the horizontal member, as may be required.

In the adjustment of the parts withrespect I to each other the horizontal member is adapted to be'positioned always horizontally by engagement thereof with any one of the longitudinal series of upper slots 4 of the upright member. In the use of the jack as applied to the outer side of a window sill, as shown in Figure 5, the upright member engages the outer side of the window sill, and the horizontal member is provided with an inner horizontal hook 24, engaginga vertical frame bar of a window light, thereby holding the jack securely in position.

The horizontal member being formed in two sections lapping each other, it is the inner of said sections that is provided with the inner V adjustment as may be required;

" horizontal hook 24, and in the use of the jack as shown in Figure 4, it is the horizontally hooked section that is employed as a transverse member l1, although not necessarily so, the vertically hooked horizontal section of Figure 4 of the drawing being interchangeable with the hori-V zontally hooked. section.

1 The hook device I3, has a bolt 25 engageable with any one of a series of perforations 26 of the horizontal member,- thereby providing for In this window jack the three members of the jack, namely the horizontal member, the uprightmember and the strut member, engaged with one another as stated will be held in position by the weight borne thereby irrespective of the bolt connections, thereby relieving such bolts of strain, to thereby render the Jack'safe' for use,

'even though a bolt or bolts should break or fall out for any cause. I

- This window jackbeing madeoof metal is re? 'gardedas absolutely safe, and due tothespecial features of adjustability,'one pair of jacks for supporting a scaffold plank will serve for many different jobs for which at present' iacks of different sizes must be used. In the use of the window jack as shown in Figures 3 and 4 of the drawings, the jack may be positionedeither within the sash or without the same as will be obvious.

I claim:"

1. In aglaziers window jack, provided with a horizontal member, an upright member, and aistrutmember; said upright member having] an upper slot and a lowerslot, said horizontal member engaging said upper slot and having an outer notch, and an inner notch; engaging said upright membensaid strut member having an upper fork embracing said horizontal member and an upper tooth engaging the outer end wall of said outer notch, said strut member engaging the lower slot of a said upright member and having a lower notch also engaging the upright member. a

2. In a glaziers windowjack, provided with a horizontal member, an upright member, and a strut; member; said upright member having a longitudinal series of upper slots and a lower slot, said horizontal member engaging any one of I said upper slots and having an outer notch, and a longitudinal series of inner notches any one of which engages said upright member, said strut member having an upper fork embracing said horizontal memberand an upper tooth engaging the outer end wall of said outer notch, said strut member engaging the lower slot of said upright member and having a lower'notch also engaging the upright member.

3. In a glaziers window jack, provided with a horizontal member, an upright member, and astrut member; saidupright member having a longitudinal series of upper slots and ,a lower slot, said horizontal member engaging any one of said upper slots and having an outer notch, and a longitudinal series of inner notches any one of which engages said upright member, said strut member having an upper fork embracing said horizontal member and an upper tooth enstrut member; said upright member having a V longitudinal series of upper slots and a lower 'slot, said horizontal" member engaging any one of said upper 'slots and having an outer notch, and a, longitudinal series of inner notches any one of which engages said upright member, said strut member having an upper fork embracing; said horizontal member and an upper tooth en'- gaging the outer end wall of said outer notch, said strut member engaging the lower slot of said upright member and having a lowerg notch also engaging the upright member, said upright memberhaving a horizontal 7U -form devi'ce ad justabletransversely thereof to engage one edge of the upright member and a vertical bar 'of a window frame light.

MENNO NEINHOUSE. M 

